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EP2782160B1 - Secondary battery pack having novel structure - Google Patents

Secondary battery pack having novel structure Download PDF

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Publication number
EP2782160B1
EP2782160B1 EP13746867.4A EP13746867A EP2782160B1 EP 2782160 B1 EP2782160 B1 EP 2782160B1 EP 13746867 A EP13746867 A EP 13746867A EP 2782160 B1 EP2782160 B1 EP 2782160B1
Authority
EP
European Patent Office
Prior art keywords
battery cell
secondary battery
battery pack
pcm
mounting member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13746867.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2782160A1 (en
EP2782160A4 (en
Inventor
Hee Gyu Kim
Jung Hwan Kim
Geon Tae Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Chem Ltd
Original Assignee
LG Chem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Publication of EP2782160A1 publication Critical patent/EP2782160A1/en
Publication of EP2782160A4 publication Critical patent/EP2782160A4/en
Application granted granted Critical
Publication of EP2782160B1 publication Critical patent/EP2782160B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/106—PTC
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a secondary battery pack having a novel structure, and, more particularly, to a secondary battery pack including a battery cell having an electrode assembly disposed in a battery case together with an electrolyte in a sealed state, the battery cell having first and second electrode terminals formed at a top thereof, an electrically insulative mounting member having an opening, through which the second electrode terminal of the battery cell is exposed, the electrically insulative mounting member being mounted to a top of the battery cell, a protection circuit module (PCM) including a protection circuit board (PCB) loaded on the electrically insulative mounting member, the PCB having a protection circuit, and a connection member (A) and a connection member (B) coupled to a bottom of the PCB, the connection member (A) being connected to the first electrode terminal of the battery cell via a safety element, the connection member (B) being coupled to the second electrode terminal of the battery cell, the PCB being provided with a through hole, through which the connection member (B) is exposed, and an insulative cap coupled to
  • the lithium secondary battery may be configured to have a detachable type structure in which the lithium secondary battery can be easily inserted into and removed from the external devices or to have an embedded type structure in which the lithium secondary battery is embedded in the external devices.
  • the lithium secondary battery can be inserted or removed into or from a device, such as a mobile phone or a laptop computer, as needed.
  • another device such as an MPEG Audio Layer-3 (MP3) player, requires an embedded type battery pack due to the structure or capacity thereof.
  • MP3 MPEG Audio Layer-3
  • a lithium secondary battery may be heated or explode due to overcharge of the lithium secondary battery, overcurrent in the lithium secondary battery, or other external physical impact applied to the lithium secondary battery. That is, the safety of the lithium secondary battery is very low. Consequently, safety elements, such as a positive temperature coefficient (PTC) element and a protection circuit module (PCM), to effectively control an abnormal state of the lithium secondary battery, such as overcharge of the lithium secondary battery or overcurrent in the lithium secondary battery, are loaded on a battery cell in a state in which the safety elements are connected to the battery cell.
  • PTC positive temperature coefficient
  • PCM protection circuit module
  • US 2011020672 , US 2010098973 , and US2011045322 disclose secondary battery packs including a battery cell and a protection circuit module (PCM) assembly.
  • PCM protection circuit module
  • the PCM is electrically connected to the battery cell via conductive nickel plates by welding or soldering. That is, nickel plates are connected to electrode tabs of the PCB by welding or soldering, and the nickel plates are connected to electrode terminals of the battery cell by welding or soldering. In this way, the PCM is connected to the battery cell to manufacture a battery pack.
  • the safety elements including the PCM
  • the safety elements including the PCM
  • the safety elements to be maintained in electrical connection with the electrode terminals of the battery cell and, at the same time, to be electrically isolated from other parts of the battery cell.
  • a plurality of insulative mounting members or other parts is necessary, which complicates an assembly process of the battery pack.
  • the sum of the height of the PCM and the height of the insulative cap generally reaches 3 mm with the result that a space necessary to receive the battery cell is reduced.
  • PCM protection circuit module
  • connection member (B) exposed through the through hole of the PCB, is electrically connected to the second electrode terminal of the battery cell via the PTC element from the above, and the connection member (A) is electrically connected to the first electrode terminal of the battery cell, in a state in which the PCM is loaded on the electrically insulative mounting member. Consequently, electrical connection is achieved using a simple connection method. Also, the assembly operation is easily performed, thereby greatly improving manufacturing efficiency.
  • connection member (A) extending from one end of the PCM is not bent, and the connection member (B) does not need an additional loading space. Consequently, it is possible to minimize a dead space, caused as the connection members are bent for electrical connection of the safety element in the conventional art. Also, the sum of the height of the PCM and the height of the insulative cap is minimized, and therefore, it is possible to manufacture a secondary battery pack having higher energy density than other secondary battery packs having the same standard.
  • the sum of the height of the PCM and the height of the insulative cap may be 3.0 mm or less.
  • the minimum value of the sum of the height of the PCM and the height of the insulative cap is not particularly restricted.
  • the minimum value of the sum of the height of the PCM and the height of the insulative cap may be 1 mm.
  • the battery case requires easy machining and predetermined mechanical strength.
  • the battery case may be a prismatic metal container.
  • the battery case is an aluminum container or a stainless steel container.
  • the second electrode terminal may be an anode terminal
  • the first electrode terminal may be a cathode terminal
  • a prismatic battery cell may be configured to have a structure in which an electrode terminal protruding from the top of the battery cell and a battery case of the battery cell form an anode terminal and a cathode terminal, respectively, and an insulation member, such as a gasket, is disposed between the anode terminal and the cathode terminal to insulate the anode terminal and the cathode terminal from each other.
  • the second electrode terminal may be an anode terminal protruding from the top of the battery case
  • the first electrode terminal may be a cathode terminal formed at the top of the battery case excluding the anode terminal.
  • connection members may be coupled to the bottom of the PCB using surface mount technology (SMT).
  • SMT surface mount technology
  • the SMT prevents paste from remaining at the bottom of the PCB during soldering or the bottom of the PCB from being damage due to heat during welding.
  • the SMT achieved accurate and reliable coupling as compared with a conventional welding or soldering method.
  • the SMT is widely used to mount surface mount type parts on an electronic board, such as a printed circuit board (PCB).
  • PCB printed circuit board
  • connection member (B) which is formed of a nickel plate, may be coupled to the anode terminal using SMT, and the safety element may be coupled to the cathode terminal using SMT.
  • connection member (B) may be coupled to the bottom of the through hole of the PCB. That is, the connection member (B) can be coupled to the second electrode terminal through the through hole, thereby further simplifying the assembly process and minimizing the thickness of the PCM.
  • the safety element is an element, which is broken during conduction of overcurrent or the resistance of which increases with the increase of temperature.
  • the safety element is positive temperature coefficient (PTC) element.
  • PTC positive temperature coefficient
  • the PTC element serves to interrupt current at the upper end of the battery pack when the temperature of the battery pack abruptly rises due to an internal short circuit or the like.
  • the safety element is not limited to the PTC element.
  • a bimetal or a fuse may be used as the safety element.
  • the PTC element may include a PTC body, a PCM coupling part coupled to a top of the PTC body, and a battery cell coupling part coupled to a bottom of the PTC body, and the battery cell coupling part may extend from one end of a PCM assembly in a horizontal direction in a protruding fashion such that the battery cell coupling part is exposed upward from the PCM assembly.
  • the insulative mounting member may have a size in a horizontal direction less than that of the top of the battery cell in order to provide a region where the connection member (A) is connected to the battery cell, and the insulative mounting member may be further provided with a second opening, through which a case upper end protruding part ('sealed electrolyte injection port') of the battery cell is exposed upward.
  • connection member (A) Since the size of the insulative mounting member in the horizontal direction is less than that of the top of the battery cell, it is possible to easily secure a space necessary to locate the connection member (A) between one end of the PCM assembly and one end of the top of the battery cell.
  • a receiving sidewall protrudes upward from a top of the insulative mounting member and fastening protrusions may be vertically formed at the receiving sidewall such that the PCM assembly is stably mounted to the insulative mounting member.
  • the upper end of the sidewall may be coupled to the PCM assembly while the upper end of the sidewall supports the PCM assembly.
  • the fastening protrusions vertically formed at the receiving sidewall increases coupling force between the PCM assembly and the insulative mounting member, thereby effectively preventing the connection member (A) from being separated from the PCM assembly due to external force.
  • the sum of a height of the receiving sidewall and heights of the protrusions may be equal to a height of the PCB.
  • one or more fastening protrusions may protrude downward from a bottom of the insulative mounting member and fastening grooves corresponding to the fastening protrusions may be formed at the top of the battery cell such that the insulative mounting member is stably mounted to the battery cell.
  • the coupling of the insulative mounting member to the top of the battery case may be achieved, for example, by bonding, thereby achieving easiness in assembly process of the battery pack and securing a more stable coupling state.
  • an additional insulative cap (bottom cap) may be mounted to the lower end of the battery cell.
  • a sheathing film may be attached to the outer surface of the battery case of the battery cell. Consequently, it is possible to protect the battery cell from external impact and to maintain electrical insulation of the battery cell.
  • the sheathing film is attached to the outer surface of the battery case of the battery cell such that the sheathing film surrounds a downward extension of the insulative cap
  • the secondary battery pack according to the present invention may be variously applied irrespective of the kind or external shape of the battery cell.
  • the secondary battery pack according to the present invention is applied to a battery pack including a prismatic lithium secondary battery as a battery cell.
  • connection member (A) is connected to a first electrode terminal of the battery cell via a safety element
  • connection member (B) is coupled to a second electrode terminal of the battery cell
  • the PCM is provided with a through hole, through which the connection member (B) is exposed.
  • the PCM which is an additional member, is mounted to the upper end of the battery cell in a state in which the PCM is electrically connected to the upper end of the battery cell.
  • complicated coupling between the PCM and the battery cell including a large number of welding or soldering processes, is necessary.
  • a defect rate is increased.
  • a space necessary to mount the PCM to the battery cell is required.
  • connection members are coupled to the PCM using SMT
  • the connection member (A) is coupled to the battery cell in a state in which the connection member (A) extends from one end of the PCM assembly in the horizontal direction in a protruding fashion. Consequently, it is possible to greatly reduce a defect rate at the connection regions and to simplify an assembly process as compared with a conventional welding or soldering method.
  • connection member (A) is coupled to the bottom of a PCM in a state in which the connection member (A) extends from one end of the PCM assembly in the horizontal direction in a protruding fashion, and a connection member (B) is coupled to the bottom of the PCM in a state in which the top of the connection member (B) is exposed through a through hole of a PCB. Consequently, it is possible to reduce the number of manufacturing processes and to manufacture a battery pack having a more compact size.
  • the size of the upper space, in which the PCM assembly and the insulative mounting member are mounted is reduced, and therefore, it is possible to increase battery capacity of the secondary battery pack as compared with other secondary battery packs having the same standard.
  • FIG. 1 is an exploded perspective view showing the upper end of a battery cell according to an embodiment of the present invention and an insulative cap, on which an insulative mounting member is loaded
  • FIG. 2 is a partial perspective view showing a state in which the insulative cap is mounted at the structure of FIG. 1
  • FIG. 3 is a typical view showing a sheathing film attached to the outer surface of a battery case of FIG. 2 .
  • a secondary battery pack 100 is configured to have a structure including a battery cell 110, an electrically insulative mounting member 120 mounted to the top of the battery cell 110, a protection circuit module (PCM) 130, an insulative cap 140 mounted to the upper end of the battery cell 110 while surrounding the insulative mounting member 120, and a sheathing film 160 attached to the outer surface of a battery case of the battery cell 110 such that the sheathing film 160 surrounds the outer surface of the battery case of the battery cell 110.
  • PCM protection circuit module
  • the battery cell 110 is configured to have a structure in which an electrode assembly of a cathode/separator/anode structure is mounted in a battery case 150 made of aluminum together with an electrolyte in a sealed state, an anode terminal 111 protrudes from the middle of the top of the battery cell 110, and a cathode terminal 112 is formed at the top of the battery cell 110 excluding the anode terminal 111.
  • the insulative mounting member 120 is provided with an opening 121, through which the anode terminal 111 of the battery cell 110 is exposed.
  • a fastening protrusion 124 protrudes downward from the bottom of the insulative mounting member 120 and a fastening groove 114 corresponding to the fastening protrusion 124 is formed at the top of the battery cell 110 such that the insulative mounting member 120 is stably mounted to the battery cell 110.
  • the PCM 130 includes a protection circuit board (PCB) 133 loaded on the insulative mounting member 120, the PCB 133 having a protection circuit, and connection members 132 and 136 coupled to the bottom of the PCB 133.
  • the connection member 136 is connected to the cathode terminal 112 via a positive temperature coefficient (PTC) element 137, and the connection member 132 is connected to the anode terminal 111.
  • the PCB 133 is provided with a through hole 134, through which the connection member 132 is exposed.
  • the insulative cap 140 is made of an electrically insulation material.
  • the electrically insulative cap 140 is formed to surround the insulative mounting member 120 in a state in which the connection members 132 and 136 and the protection circuit board 133 are loaded on the electrically insulative cap 140. Also, the insulative cap 140 is coupled to the top of the battery case by bonding.
  • a sheathing film 160 which displays product information while maintaining an electrically insulated state, is attached to the outer surface of the battery case.
  • the sheathing film 160 is formed of a thermally shrinkable material.
  • the sheathing film 160 is configured in the form of a tube, which surrounds the battery cell 110, is shrunk by heat applied to the tube, and comes into tight contact with the outer surface of the battery case of the battery cell 110.
  • FIG. 4 is a partial perspective view typically showing a state in which the insulative mounting member is mounted to the upper end of the battery cell
  • the insulative mounting member 120 has a size 1 in the horizontal direction less than the size L of the top of the battery cell 110 such that the connection member 136 is connected to the battery cell 110.
  • the insulative mounting member 120 is further provided with a second opening 123, through which a sealed electrolyte injection port 113 of the battery cell 110 is exposed upward.
  • a receiving sidewall 125 protrudes upward from the top of the insulative mounting member 120 and fastening protrusions 126, 127, 128, and 129 are vertically formed at the receiving sidewall 125 such that a PCM assembly is stably mounted to the insulative mounting member 120.
  • FIG. 5 is a partial perspective view showing a state in which the PCM is mounted at the structure of FIG. 4
  • FIG. 6 is a typical view showing a structure in which the connection members are coupled to the bottom of the PCM assembly.
  • connection members 132 and 136 are coupled to the bottom of the PCB 133 by surface mount technology (SMT), and the connection member 132 is coupled to the bottom of the through hole 134 of the PCB 133.
  • SMT surface mount technology
  • the PTC element 137 includes a PTC body 1371, a PCM coupling part 1372 coupled to the top of the PTC body 1371, and a battery cell coupling part 1373 coupled to the bottom of the PTC body 1371.
  • the battery cell coupling part 1373 extends from one end of the PCM assembly in the horizontal direction in a protruding fashion such that the battery cell coupling part 1373 is exposed upward from the PCM assembly.
  • FIG. 7 is a side typical view of FIG. 6 .
  • the sum H of the height of the receiving sidewall 125 and the heights of the protrusions 126, 127, 128, and 129 of the insulative mounting member 120 is equal to the height H of the PCB 133.
  • connection member 136 is electrically connected to the cathode terminal 112 of the battery cell 110 via the PTC element 137, and the connection member 132 is electrically connected to the anode terminal 111 of the battery cell 110 through the through hole 137 of the PCB 133, in a state in which the PCM 130 is loaded on the insulative mounting member 120. Consequently, electrical connection is achieved using a simple connection method. Also, the sum of the height of the PCM 130 and the height of the insulative cap 140 is 3 mm or less. Consequently, it is possible to manufacture a secondary battery pack having higher energy density than other secondary battery packs having the same standard.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inorganic Chemistry (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
EP13746867.4A 2012-02-07 2013-02-04 Secondary battery pack having novel structure Active EP2782160B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120012102A KR101441524B1 (ko) 2012-02-07 2012-02-07 신규한 구조의 이차전지 팩
PCT/KR2013/000866 WO2013119003A1 (ko) 2012-02-07 2013-02-04 신규한 구조의 이차전지 팩

Publications (3)

Publication Number Publication Date
EP2782160A1 EP2782160A1 (en) 2014-09-24
EP2782160A4 EP2782160A4 (en) 2014-12-31
EP2782160B1 true EP2782160B1 (en) 2016-07-20

Family

ID=48947729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13746867.4A Active EP2782160B1 (en) 2012-02-07 2013-02-04 Secondary battery pack having novel structure

Country Status (7)

Country Link
US (1) US10170801B2 (ja)
EP (1) EP2782160B1 (ja)
JP (1) JP2015510233A (ja)
KR (1) KR101441524B1 (ja)
CN (1) CN104170117B (ja)
TW (1) TWI482334B (ja)
WO (1) WO2013119003A1 (ja)

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KR101726774B1 (ko) * 2015-02-23 2017-04-13 주식회사 엘지화학 모듈화된 전지팩용 어셈블리 및 이를 포함하는 전지팩
CN104993092B (zh) * 2015-06-12 2017-03-08 福建南平南孚电池有限公司 一种带有充电指示灯的二次电化学电池封口体
CN104900819B (zh) * 2015-06-12 2017-02-15 福建南平南孚电池有限公司 具有封装型芯片散热结构的二次电化学电池封口体及电池
CN106450060A (zh) * 2015-08-04 2017-02-22 郑州比克电池有限公司 锂离子电池及其盖板
KR102046879B1 (ko) * 2016-01-18 2019-11-20 주식회사 엘지화학 2차 전지
KR102051927B1 (ko) * 2016-10-31 2019-12-04 주식회사 엘지화학 전극단자와 접속단간 접합 상태를 쉽게 확인할 수 있는 보호회로기판 및 이를 포함하는 이차전지팩
KR102409424B1 (ko) * 2017-08-29 2022-06-15 주식회사 엘지에너지솔루션 배터리 모듈 및 그 제조 방법
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EP2782160A1 (en) 2014-09-24
EP2782160A4 (en) 2014-12-31
WO2013119003A1 (ko) 2013-08-15
US20140302372A1 (en) 2014-10-09
TW201403923A (zh) 2014-01-16
CN104170117A (zh) 2014-11-26
KR20130090958A (ko) 2013-08-16
KR101441524B1 (ko) 2014-09-17
US10170801B2 (en) 2019-01-01
JP2015510233A (ja) 2015-04-02
TWI482334B (zh) 2015-04-21
CN104170117B (zh) 2017-01-25

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